Reverse osmosis nanocomposite membranes containing graphene oxides coated by tannic acid with chlorine-tolerant and antimicrobial properties

Hee Joong Kim, Yong Seok Choi, Min Young Lim, Kyung Hwa Jung, Dong Gyun Kim, Jin Joo Kim, Hyo Kang, Jong Chan Lee

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

Graphene oxides coated by tannic acid (GOT) can be obtained easily by the self-polymerization of tannic acid in basic buffer solution on a graphene oxide surface. Polyamide reverse osmosis nanocomposite membranes containing GOT in the active layer were prepared by the interfacial polymerization using an organic solution containing trimesoyl chloride and an aqueous solution containing m-phenylene diamine and GOT. The polyamide membrane containing GOT (PA-GOT) showed significantly improved performances such as water flux, chlorine resistance, and antimicrobial properties, compared to the polyamide membrane without any additives and the polyamide membranes containing only tannic acid and/or graphene oxide. These high performances of PA-GOT membrane could be ascribed to a various of advantageous properties of GOT such as improved hydrophilicity, oxidative stress capability, barrier property, and compatibility with the polymer matrix.

Original languageEnglish (US)
Pages (from-to)25-34
Number of pages10
JournalJournal of Membrane Science
Volume514
DOIs
StatePublished - Sep 15 2016

Keywords

  • Antimicrobial membranes
  • Chlorine tolerant membranes
  • Graphene oxides
  • Polyphenols
  • Reverse osmosis

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